00624nam0 2200205 450 00001682120081002110927.020081002d1970----km-y0itay50------baengUSa-------001yyThe design of educational experimentsC. Mitchell DaytonNew YorkMcGraw-Hill[1970]XI, 441 pill.23 cmDayton,C. Mitchell144989ITUNIPARTHENOPE20081002RICAUNIMARC000016821211.6/13379/L/CNRNAVA2The design of educational experiments1201842UNIPARTHENOPE